Recombinant Viruses and Early Global HIV-1 Epidemic
Marcia L. Kalish* , Kenneth E. Robbins*, Danuta Pieniazek*, Amanda Schaefer*, Nzila Nzilambi†, Thomas C. Quinn†‡, Michael E. St. Louis*†, Ae S. Youngpairoj*, Jonathan Phillips*, Harold W. Jaffe*, and Thomas M. Folks*
Author affiliations: *Centers for Disease Control and Prevention, Atlanta, Georgia, USA; †Project SIDA, Kinshasa, Zaire; ‡National Institutes of Health, Bethesda, Maryland, USA
Figure 2. Distribution of subtypes and recombinant viruses. The pie chart represents 66 strains for which sequences from at least 2–3 gene regions were available for comparison; the subtypes in the pie chart represent concordant phylogenies suggestive of possible “pure” subtypes; the CRF01 and unique recombinant viruses are indicated in the pie chart. Table 2 summarizes subtypes of unique recombinant viruses.
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